Finding the Third Proportional to 67,715 and 145,836.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,715 : 145,836.50 = 145,836.50 : x
2. Step 2: Convert to fraction form
   67,715/145,836.50 = 145,836.50/x
3. Step 3: Cross multiply
   67,715x = 145,836.50 × 145,836.50
4. Step 4: Simplify right side
   67,715x = 21,268,284,732.25
5. Step 5: Solve for x
   x = 21,268,284,732.25/67,715
6. Step 6: Final answer
   x = 314,085.28